Morning - I have a PC Carbine and went to the range for the fourth time. I changed the mag release and charging handle. Not sure if its the cause - but my 33 round magazine kept falling out, and eventually the bolt would only open half way. I don’t think the change was the cause but just giving the facts. Got home disassembled and noticed the bolt top assembly doesn’t ‘seem’ to sit back enough. Any way went a head and changed the trigger, trigger pins, and extractor pin.
Problem still there, but noticed if i shake the gun and or fiddle with the charger bolt movement, the bolt will go all the way back.
I’ll head to Ruger site, but thought someone would have a solution here. Thanks Alan